Motor bracket



I June 21,1927.

' W. ERNST moron aruwxsr Tiled May s. 1926 INVENTOR.

TTORNEYS Patented June 21, 1927.

UNITED STATES WILLIAM ERNST, OF BACINE, WISCONSIN,

ASSIGNOR TO HAMILTON BEACH MFG. 00.,

OF RACINE, WISCONSIN, A CORPORATION OF WISCONSIN.

MOTOR BRACKET.

Application filed May 5,

This invention relates to improvements in motor brackets, particularly adapted for yieldingly attaching electric motors to sewing machines.

It is one of the objects of the present invention to provide a bracket attachment for sewing machines and like devices for bolding an electric motor so that the pulley wheel thereof will yieldingly press against the machinehand wheel to frictionally drive the same. 7

A further object of the invention is to provide a'motor bracket so pivoted that the arc of travel thereof is smaller than the radius of the hand wheel adapted to be engaged by the motor pulley wheel, with the result that the force exerted by a spr ng forces the pulley into continuous yielding contact with the hand wheel.

A further objectof the invention is to provide a motor bracket of the class de scribed suitable for easy attachment to any of the well known makes of sewing machines.

A further object of the invention is to provide a motor bracket of the class described which is of very simple construction, is eficient in operation, is strong and durable, is inexpensive to manufacture, and is welladapted for the purposes described.

With the above and other objects in view the invention relates to the improved motor bracket and its parts and combinations as set forth in the claim and all equivalents thereof.

In the accompanying drawing in which the same reference characters indicate the same parts in all of the views:

Fig. 1 is an end view of a sewing machlne head equipped with the improved motor bracket and motor carried thereby;

Fig. 2 is a side View thereof; and

Fig. 3 is a sectional View taken on line 33 of Fig. 2.

In the accompanying drawings it will appear that the head of a sewing machine is designated by the numeral 5 and the machine hand wheel is designated 6. Secured to the side of the head, correctly located with respect to the hand wheel, is a plate or 1926. Serial No. 106,979.

block member 7 having its inner face curved to correspond with the contour of the head, and the same is held in position by a screw 8.

AU-bracket 9 is secured to the upper inner face portion of a small fiat type elec tric motor 10 and the angular ends or ear portions 11 of the bracket are apertured and engage the upper side portions of the block 7. Screws 12 extend through the apertures of the ears and into the block, and the bracket member is free to pivot on said screw-s with respect to the block member.

The lower portion of the block member is formed with a centrally positioned, circular recess 13 in which the inner end portion of a spring 14 is seated and secured. The outer end portion of the spring bears against the rear of the motor, as shown in Fig. 1.

Due to the fact that the pivotal arrangement between the members 9 and 7 is such that the are of travel is less than the radius of the hand wheel, the pressure exerted by the spring will always urge the motor away from the base of the head and yieldingly hold the pulley wheel 15 of the motor in forceful contact with the hand wheel to drive the same. a I

From the foregoing description it will be evident that the improved motor bracket for sewing machines is of very simple and novel construct-ion, and is well adapted for the purpose set forth.

What is claimed as the invention is:

In combination, a sewing machine head carrying a. revoluble hand wheel, a block member secured to the side portion of the head, a U-bracket pivotally secured. to the end portions of the block member, a motor secured near its upper portion to said bracket, said motor having a pulley wheel adapted for frictional engagement with said hand wheel, and a spring interposed between the block member and the lower portion of the motor for urging the motor outwardly to yieldingly hold the pulley wheel thereof in engaging position.

In testimony whereof, I affix my signature.

WILLIAM ERNST. 

